Some reflections on my work in an e-learning school

HapYak | Interactive Video

HapYak allows you to add text, links and image overlays to your videos. You can also easily annotate your YouTube and Vimeo videos and create quizzes using multiple choice and free-text questions. it also lets you draw on your videos, share commentaries and link to any specific moment in the video.

Far more sophisticated than Blubbr. You select when you wish to add quiz questions and you can choose multiple choice or free text.

You can even embed iframes and create hotspots for links outside of the video.